jQuery Descendants

<!DOCTYPE html>
<html>
<head>
    <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
</head>
<body style="font-family: sans-serif; padding: 20px;">
    <ul id="menuNav">
        <li><span>Beranda</span></li>
        <li><span>Tutorial</span></li>
    </ul>
    <button id="btnFind">Cari Semua Span di Menu</button>

    <script>
        $('#btnFind').click(function() {
            $('#menuNav').find('span').css('color', '#00758f');
        });
    </script>
</body>
</html>